This open-air parking lot is bordered to the west by Carlton St and to the east by a large, two-story commercial complex. Look for a red and blue sign facing oncoming traffic; white text in the red section will read "Boston University", while the text in the blue section will read "Lot R". Also look for a white parking attendant booth with a slanted roof, in between the entrance and exit lanes into the parking lot, indicated by yellow arrows.

Managed by Boston University. This location is a commercial parking lot.

The entrance to this parking lot is located on the southern side of Commonwealth Ave, at the northeast corner of the intersection of Commonwealth Ave and Carlton St; the entrance is across the street from a four-story gray building with white accenting.

Please be advised that the southern lane of Commonwealth Avenue is a one-way, eastbound street.

This parking lot is located northwest of the Fenway/Kenmore neighborhood and south of Cambridgeport.